AH = ns_AssetHandler
The AH uses the Package system from Houdini to set the right Environment variables. So modify the ns_Asset_Handler.json package file and set the right path to your unzipped AH location.
Navigate to the Houdini 18.5 user folder C:\<USER>\Documents\houdini18.5, create a “packages” folder. Copy the ns_Asset_Handler.json into it.
Navigate to the Houdini 18.5 user folder home\<USER>\houdini18.5\packages, create a “packages” folder. Copy the ns_Asset_Handler.json into it.
Copy the python2.7libs/python3.7libs from the _install folder to home\<USER>\houdini18.5
(Why i have to copy the pythonX.7libs to home dir, and the Windows version has all in place? Well, i found some issues with access/permissions on network drives, so i recommend to copy the libs to your local houdini user dir.)
Settings will be stored under C:\<USER>\Documents\houdini18.5\plugins\ns_AssetHandler\Preferences.json